IBM Support

IV43239: NULLPOINTEREXCEPTION IN LOGINCONTEXT.LOGIN().

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APAR status

  • Closed as program error.

Error description

  • Error Message: IBM JVM throws NullPointerException when calling
    LoginContext.login() immediately after LoginContext.logout().
    .
    Stack Trace: javax.security.auth.login.LoginException:
    java.lang.NullPointerException
         at
    com.ibm.security.auth.module.LinuxLoginModule.commit(LinuxLoginM
    odule.java:235)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
    Method)
         at
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessor
    Impl.java:60)
         at
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethod
    AccessorImpl.java:37)
    .
    N/A
    

Local fix

  • Create a new LoginContext for the second login.
    

Problem summary

  • The root cause is that one member (supplementaryGroups) is set
    to null in logout(), while it is referenced but not created
    again in the second login().
    

Problem conclusion

  • This defect will be fixed in:
    7.0.0 SR5
    6.0.1 SR6
    6.0.0 SR14
    5.0.0 SR16 FP3
    .
    Clear supplementaryGroups and create a new instance in logout().
    The fix was delivered for Java 5.0 SR16FP3, Java 6.0 SR14, Java
    626 SR6, and Java 7.0 SR5.
    The affected jar is
    ibmjaaslm.jar (level 20130523) in Java 5.0
    rt.jar (level 20130524) in 6.0
    rt.jar (level 20130528) in 6.26
    and rt.jar (level 20130527_06) in 7.0.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV43239

  • Reported component name

    SECURITY

  • Reported component ID

    620700125

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-05-28

  • Closed date

    2013-05-28

  • Last modified date

    2013-06-20

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

    IV43240 IV44569

Fix information

  • Fixed component name

    SECURITY

  • Fixed component ID

    620700125

Applicable component levels

  • R260 PSY

       UP

  • R600 PSY

       UP



Document information

More support for: Runtimes for Java Technology
Security

Software version: 260

Reference #: IV43239

Modified date: 20 June 2013